SY/T 6551-2003
Safety technology rules for underbalanced drilling (English Version)

Standard No.

SY/T 6551-2003

Language

Chinese, Available in English version

Release Date

2003

Published By

Professional Standard - Petroleum

Status

Be replaced 2008-03

Replace By

SY 5974-2007

Latest

SY/T 5974-2014

Scope

This standard specifies the safety technical requirements during onshore oil underbalanced drilling. This standard applies to liquid-phase underbalanced drilling operations in onshore oil and gas wells. Gas phase and gas-liquid mixed phase underbalanced drilling operations can be carried out as a reference.

SY/T 6551-2003 history

• 2014 SY/T 5974-2014 Code for safety technology of drilling wellsite, equipment and operation
• 2007 SY 5974-2007 Specification for well technology safety of wellsite, equipment and task
• 2003 SY/T 6551-2003 Safety technology rules for underbalanced drilling

SY/T 6551-2003 Safety technology rules for underbalanced drilling was changed to SY 5974-2007 Specification for well technology safety of wellsite, equipment and task.